DIGITAL BOOKMARK - The Mark My Time 3D digital bookmark with a LED book light offers a fun and innovative way to mark your place in a book while also serving as a convenient reading timer. READING TIMER - Keep track of your reading sessions with the built in digital timer, which allows you to set customizable countdowns to help improve reading habits and comprehension. MULTI FUNCTIONAL - This device not only tracks reading time but also serves as a handy book mark, and a reading light eliminating the need for separate reading accessories. BATTERY OPERATED - The 3D bookmark with LED light is battery operated, ensuring long lasting use without the need for frequent replacements. ADJUSTABLE LIGHT – The LED book light swivels to help light up a page to suit your reading environment and prevent eye strain.